GB1199529A - Display Systems. - Google Patents

Display Systems.

Info

Publication number
GB1199529A
GB1199529A GB56893/68A GB5689368A GB1199529A GB 1199529 A GB1199529 A GB 1199529A GB 56893/68 A GB56893/68 A GB 56893/68A GB 5689368 A GB5689368 A GB 5689368A GB 1199529 A GB1199529 A GB 1199529A
Authority
GB
United Kingdom
Prior art keywords
light
point
character
display screen
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB56893/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1199529A publication Critical patent/GB1199529A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0386—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry for light pen
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background

Abstract

1,199,529. Photo-electric control of data displays. INTERNATIONAL BUSINESS MACHINES CORP. Nov.29, 1968 [Jan.12, 1968], No.56893/68. Heading G1A. A display system comprises means for illuminating a display screen with a light image linearly polarized in a first direction, means for directing on to an area of said screen a light beam linearly polarized in a second direction and polarizationsensitive means responsive to the coincidence of both said image and said light beam in said area for producing an optical control signal. Alphanumeric characters are selected from a matrix under computer control as described in U.S. Patent No. RE. 26,170 and deflected to desired points on a display screen 20 by a computer controlled deflector 14. The character is transmitted in plane polarized light and in order to indicate to the computer a particular point 28 on the display an operator directs a beam of orthogonally polarized light 24 at the point. Reflected and transmitted light from the point 28 is deflected by a beamsplitter 16 to an optical AND gate 42 of the type disclosed in Specification 1,199,530 which gives out light through analyzer 58 only when the beams 10 and 24 are directed to the same point on the display screen. A photo-detector 62 picks-up the optical control pulse to effect erasure of a character from memory 32 or writing in of a character keyed in at 66.
GB56893/68A 1968-01-12 1968-11-29 Display Systems. Expired GB1199529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69745968A 1968-01-12 1968-01-12

Publications (1)

Publication Number Publication Date
GB1199529A true GB1199529A (en) 1970-07-22

Family

ID=24801204

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56893/68A Expired GB1199529A (en) 1968-01-12 1968-11-29 Display Systems.

Country Status (3)

Country Link
US (1) US3534359A (en)
FR (1) FR1599956A (en)
GB (1) GB1199529A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735395A (en) * 1971-01-04 1973-05-22 Iwatsu Electric Co Ltd Projection type keyboard device
US3825730A (en) * 1972-11-07 1974-07-23 Searle Medidata Inc Two-way projection system for data input
JPS5726369B2 (en) * 1973-09-06 1982-06-04
GB2126001A (en) * 1982-08-24 1984-03-14 Racal Res Ltd Interactive control and display device
US5138304A (en) * 1990-08-02 1992-08-11 Hewlett-Packard Company Projected image light pen
FR2698194B1 (en) * 1992-11-19 1995-01-06 Sextant Avionique Combined device for viewing on the screen and detecting the position of a marker relative to the screen.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189889A (en) * 1962-01-02 1965-06-15 Image Instr Inc System for modifying stored data
US3256516A (en) * 1962-06-20 1966-06-14 Ibm Data display centering and expansion system

Also Published As

Publication number Publication date
FR1599956A (en) 1970-07-20
US3534359A (en) 1970-10-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee